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FAQ 004122 EN

7 October 2019

Thomas Günthel Results RFEM RSTAB

How can I determine the breakdown load of a system with a postcritical analysis?

Answer

Currently, there is no direct way to determine the breakdown load. It is important that there are also several different states and thus that there can be several local breakdown loads.

You can assign load increments to a structure and retroactively view the individual load increments and thus find a load factor near a breakdown (depending on the number of load increments).

In the attached model, 20 load increments and saving of the intermediate results have been set (Figure 01). In Figure 02, load step 10 is shown as the last load increment before the breakdown and in Figure 03 the first load step after the breakdown is visible, where clearly the deformation is significantly higher.

Keywords

Puncture postcritical analysis Post-limiting load

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Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

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